It is as You are attempting to open the admin tool not on a primary server, let suspect You are migrating a secondary one …
If You open the admin tool on the machine from which You have started the migration, the admin tool opens in the same way.
Some tabs are not visible because the serverID in the DBINFO table differs from the value of the masterDatabaseServerID advanced option that, if set in the ADMINFIELDS table, indicates the serverID of the master server:
select ServerID from DBINFO
select FieldContents from ADMINFIELDS where FieldName = ‘Z:masterDatabaseServerID’
If the entry in the ADMINFIELDS is missing the serverID of the master server is supposed to be 0 …